Maternal serum PP13 concentrations and MoMs in Caucasian women.

Median PP13 concentrations and median PP13 MoMs (before and after adjustment to ABO blood groups) (all presented +/− 95% confidence intervals) are provided for the four study groups in the first, second and third trimesters. Although most of the patients gave three blood samples during the study of Gonen et al. [21], some of them gave only two; thus, the number of investigated blood specimens decrease from the first to the third trimester.